WATER FROM DIFFERENT SOURCES USED FOR THE IRRIGATION OF VEGETABLES TO BE MARKETED: RESEARCH ON Cryptosporidiumspp., Giardiaspp., AND COLIFORMS IN PARANA, BRAZIL

Authors

  • Rogerio TIYO Faculdade Ingá
  • Carla Zangari de SOUZA Universidade Estadual de Maringá
  • Letícia NISHI Universidade Estadual de Maringá
  • Camila Fernanda BRUSTOLIN Universidade Estadual de Maringá
  • Bianca Altrão RATTI Universidade Estadual de Maringá
  • Ana Lucia FALAVIGNA GUILHERME Universidade Estadual de Maringá

Abstract

The aim of this work was to compare, from a parasitological ( Cryptosporidiumspp. and Giardia duodenalis), bacteriological (total and thermotolerants coliforms) and physicochemical perspective, water sources used for drinking and irrigation of vegetables intended to be sold for human consumption. From January 2010 to May 2011, samples of different water sources from vegetable producing properties were collected; 100 liters for parasitological analysis, 200 mL for bacteriological analysis, and five liters for physicochemical analysis. Water samples were filtered under vacuum with a kit containing a cellulose acetate membrane filter, 1.2 µm (Millipore(r), Barueri, SP, Brazil). The material retained on the membrane was mechanically extracted and analyzed by direct immunofluorescence (Merifluor(r)kit). From 20 rural properties investigated, 10 had artesian wells (40 samples), 10 had common wells (40 samples), and one had a mine (four samples), the latter contaminated by Cryptosporidiumspp. In samples from artesian wells, 90 to 130 meters depth, 42.5% were positive for total coliforms and 5.0% were identified to have abnormal coloration. From the samples of common wells, 14 to 37 meters depth, 87.5% were contaminated with total coliforms, 82.5% were positive for thermotolerant coliforms, and 12.5% had color abnormalities. We did not detect the presence of Giardiaspp. or Cryptosporidiumspp. in artesian and common wells. The use of artesian or common wells is an important step in the control of the spreading of zoonoses, particularly Cryptosporidiumspp. and Giardiaspp., as well as artesian wells for coliform control in local production of vegetables to be marketed.

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Published

2015-08-01

How to Cite

TIYO, R., SOUZA, C. Z. de, NISHI, L., BRUSTOLIN, C. F., RATTI, B. A., & FALAVIGNA GUILHERME, A. L. (2015). WATER FROM DIFFERENT SOURCES USED FOR THE IRRIGATION OF VEGETABLES TO BE MARKETED: RESEARCH ON Cryptosporidiumspp., Giardiaspp., AND COLIFORMS IN PARANA, BRAZIL. Revista Do Instituto De Medicina Tropical De São Paulo, 57(4), 333-336. Retrieved from https://www.revistas.usp.br/rimtsp/article/view/105545

Issue

Section

Parasitology